ANULON-140 Polyoxymethylene (POM)

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ANULON-140 Polyoxymethylene (POM) represents an ideal combination of strength, rigidity and toughness. It has exceptional resistance to tensile and flexural stress due to its highly crystalline polymer structure, highest among various thermoplastics. It has the ability to function over a broad temperature range for long period. Its smooth hard surface is ideal for use in parts subjected to sliding friction. Good deimesional stability and particularly good fatigue resistance as well as exceptional machinability make ANULON-140 a versatile engineering material even for complex components with high demands on surface quality.

Salient Features of ANULON-140

High tensile strength, impact resistance and stiffness

Exceptional dynamic fatigue strength

Practical toughness and unique resilience

Minimal moisture absorpation

Good friction and wear properties

Hard and smooth surface

Excellent resistance to the effects of long exposure at high temperature in air and water

Exceptional resistance to a wide range of chemicales, oils, greases and solvents, such that environmental stress cracking is unknown

Good dimensional stability

FDA acceptability in many food contact application

Wide end-use temperature range

Availability of ANULON-140

ANULON-140 Polyacetal (Delrin) Rod

ANULON-140 Polyacetal (Delrin) Bar Round

ANULON-140 Polyacetal (Delrin) Sheet

ANULON-140 Polyacetal (Delrin) Block

ANULON-140 Polyacetal (Delrin) Plate

ANULON-140 Polyacetal (Delrin) Liner

ANULON-140 Polyacetal (Delrin) Bush

ANULON-140 Polyacetal (Delrin) Roller

ANULON-140 Polyacetal (Delrin) Moulded Component

ANULON-140 Polyacetal (Delrin) Mechnised Component

Properties of ANULON-140

Property

Unit

Test Method

Value

Specific gravity

gm/cc

DIN 53479

1.41

Tensile strength at yield

N/mm²

DIN 53455

Elongation at break

DIN 53455

20 -30

Modulus of elasticity in tension

N/mm²

DIN 53457

3100

Compressive stress
at 1% Deflection
at 10% DeflectionI

Kg/cm²

D 695

320
1,100

Impact strength

KJ/m²

DIN 53453

no failure

Notched impact strength
at 20ºC (68ºF)
at -40ºC

KJ/m²

DIN 53453

9
7.5

Coefficient of linear expansion

1 x 10^-5
K^-1

ASTM D 696

10.4 (-40ºC to 30ºC)
12.2(30ºC to 60ºC)
13.7 (60ºC to 105ºC)

Max. long term service temperature

ºC

100ºC

Dielectric strength

KV/mm

DIN 53481

>55

Shore Hardness

DIN 53505

80 - 85

Specific volume

cc/gm

0.71

Taber Abrasion 1000g load
CS-17 wheel

mg/1000
cycles

ASTM D 1044

Coefficient of static friction

0.2

Coefficient of dynamic friction
against dry smooth steel, brass,
aluminium
against self

0.15

0.35

Typical applications of ANULON-140

Gears

Bushings

Fasteners

Bearings

Rollers

Pulleys

Camshafts

Guide Rolls

Washers

Chain Sprockets

Gear Racks

Screw Conveyor

Ratchet

Slides

Handles

Bobbins

Reels & Guide
Rollers

Conveyor Chains
& Housing